平行于坝轴线方向的缝称为( )。
A．纵缝 B．斜缝C．错缝 D．横缝
参考答案：A
He narrowly escaped _______ by the falling tree.
A．to be injured
B．being injured
C．injuring
D．having injured
洪脉见于
A．心力衰竭
B．休克
C．虚脱
D．二尖瓣狭窄
E．高热、贫血
